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Thyroid UK
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Self Medicating on NDT

Hi all,

I'm new here, was wondering if anyone here is self Medicating on Natural Dessicated Thyroid?

I've been diagnosed with Hashimotos for near 13 years, mostly just on t4 thyroxine, teary had blood results in the normal

Range but even when they were I still had the symptoms of Hashi.

I want to take t3 but in Australia you can't unless you are a cancer patient or are intolerant to synthetic t4.

I purchase NDT from the USA recently and started taking half of a half grain for about 5 days, I developed a rash that I thought was the NDT (though now I'm not so sure) so I halved the dose, the rash eased then returned so I stopped taking the NDT but the rash has continued to fade and return and seems to be from eating cashew nuts!

Anyway, I want to start again on the NDT.

My Ffre T4 and T3 are below normal rang and TSHis high.

Just wondering if any of you have switched from synthetic and how you started taking NDT.

Ps I did tell my gp if ordered it and she didn't seem to bothered considering its banned here, she just told me I would need to be careful to not Over do the T4.

Any advise would be greatly appreciated

14 Replies

Hi Hashi, I took Synthroid (T4) for six years in the U.S. because my doctor kept refusing the Armour that I preferred. I had a lot of muscle issues at the time. That was 15 years ago but you still need a prescription to get NDT here? Are you sure it is not from a bovine source?

I finally did find a GP to prescribe it. It was a definite improvement.

You don't say how much T4 you are taking but I think you can move NDT rather quickly up to a comparable dose. Some articles equate 100 mcgs. T4 to one grain of NDT but that may not be exact. Someone may have newer information.


The book " Stop the Thyroid Madness" has useful instruction ,although you may have to convert the U.S. quantities . The website of the same name may help.


Welcome to the forum, Hashisis1.

How much Levothyroxine are you taking? It will help us advise how much NDT you should start on.


many people here in the UK have no option but to self treat with NDT and simply sart by taking 1/2 a grain for 3 weeks then increase by 1/2 grain every 3 or 4 weeks till they feel better

Be sure though to correct any low ferritin state plus take a good multivitamin every night before bed

1 grain of NDT = roughly 75mcg of levothyroxine

1 like

Cd I ask why u advise tk take yr multi vit bfre bed? Any particular reason?


Please.. :-)

In order to be understood by most people, as far as possible, use correct spelling, grammar and avoid using slang and/or 'text speak'.



Because vitamins tend to be better absorbed and affect the body during sleep

1 like

Thanks for all your advice, I really appreciate it..

I'm on 150mcg four days a week and 200mcg for 3, bit different hey, but 150 was two low and 200 too high and 175 to fiddly with citing up pills!!

Heloise, excuse my ignorance but what is a bovine?

It says on the bottle prescription only but I guess that doesn't appy when buying from overseas.

My ferretin levels are good for the first time in a long time oh and thanks for the advice on multivitamins. I'll order the book STTM today .

Once again, thank you all lot


NDT is made from the thyroids of animals. Most NDT is porcine (made from pig thyroid). But occasionally you read about bovine NDT (made from cow thyroid) or sheep thyroid (but I think that is really old-fashioned).


Usually NDT is from a pig, bovine would be from a cow.

I've tried Armour and NatureThroid (both piggy).

Best start slowly with half grain some find the T3 in the NDT 'different' - some just substitute a grain for 75 mcg (although some say it's more like 100mcg as bioidentical).

Here''s a link to the STTM site


J :D

1 like

I have been taking NDT for the last 14 years.


I take NDT which I get from Thailand. No scrip required. PM me if you'd like the source as a second string to your bow. Quite a lot of people on the forum take NDT, of one sort of another.

Start small and build up your NDT dose. You'll need to drop your Levo a commensurate amount at the same time. Someone else has given you the equivalents of NDT to Levo. As you can see from that, it might be possible to (over time) substitute 2 grains of NDT for your 100/200 dosing with Levo.

Are youu intending to replace all your Levo with NDT? Or just some of the dose?


Hi Humphrey, thanks for your reply, I hadn't thought about taking both, just assumed I'd replace the thyroxine entirely.

Are there benefit to both do you think?


Certainly for any NDT you add in you should reduce your Levo.

I haven't taken Levo for probably 4 years now, so I'm not a good person to ask about taking both. I expect there are people here who do (we are a very broad church!) and hopefully one of them will see your post. If not, start a thread with the question and someone certainly will.


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